HD1600V2 Serial Protocol, Version 1.4, 10/30/13
33
Basic Control
This is the command used to mute, or disconnect a zone from any source. When audio is muted, the
sound is turned off. When video is muted, video is turned off, leaving a black screen. (Or possibly blue
screen, depending upon how your receiver acts when video has been turned off.)
The different forms of the MZ command are:
^MZ @
zone
,@
zone
,
mute
$
Mute all channels of a zone or zones.
^MZ.
ch
@
zone
,
mute
$
Mute only the selected channels of zones.
^MZ.
ch
@
zone
,+$
Toggle the mute setting of zones.
^MZ ?$
In polled mode, reads current settings of all logged changes.
^MZ @
zone
,?$
Read current settings of given zones.
^MZ.
ch
@
zone
,?$
Read current settings of the selected channels of zones.
Response Strings:
^=MZ @
zone
,
mute
$
or,
^=MZ.
ch
@
zone
,
mute
$
Where:
@
zone
= One (or more) zones to be mapped.
mute
= Mute setting (0=Unmuted, 1=Muted).
ch
= Channel bitmap (Range 1-3).
‘MZ’ Examples
The ‘MZ’ command in its simplest form:
^MZ @1,@3,1$
mutes all channels of the zones ‘1’ and ‘3’. You can also mute/unmute multiple zones using a single
command. For instance:
^MZ @1,1,@3,@5,0$
mutes zone ‘1’, and unmutes zones ‘3’ and ‘5’.
By appending a ‘.’ and a channel bitmap to the ‘MZ’ command, the command can also be used to mute
individual channels.
Currently the only channel available to the Audio switch is channel ‘4’.
‘MZ’ Query Examples
To make parsing the response strings easier, only one response string is sent per zone. Or, in the case of
channel breakaways, only one response string per channel is returned. The response string is sent as a
fixed length string using leading zeroes.
You can request the settings of multiple zones, with one command, and only one response string per
zone will be returned, for instance:
^MZ @1,@3,@4,?
could return:
^+$
<-
Indicates no errors in the command
^=MZ @001,1$
<-
All channels of zone ‘1’ are muted
^=MZ @003,0$
<-
All channels of zone ‘3’ are not muted
^=MZ.004 @004,1$
<-
Digital Audio on zone ‘4’ is muted
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